package com.lyy.blog.web.admin;

import com.lyy.blog.po.type;
import com.lyy.blog.service.typeservice;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.data.domain.Pageable;
import org.springframework.data.domain.Sort;
import org.springframework.data.web.PageableDefault;
import org.springframework.stereotype.Controller;
import org.springframework.ui.Model;
import org.springframework.validation.BindingResult;
import org.springframework.web.bind.annotation.GetMapping;
import org.springframework.web.bind.annotation.PathVariable;
import org.springframework.web.bind.annotation.PostMapping;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.servlet.mvc.support.RedirectAttributes;

import javax.validation.Valid;

@Controller
@RequestMapping("/admin")
public class typecontroller {


    @Autowired
    private typeservice typeservice;

    @GetMapping("/types")
    public String types(@PageableDefault(size = 4,sort = {"id"},direction = Sort.Direction.DESC) Pageable pageable,
                        Model model){
        model.addAttribute("page",typeservice.listtype(pageable));

        return "admin/types";



    }

    @GetMapping("/types/input")
    public String input( Model model){
        model.addAttribute("type",new type());
        return "admin/types-input";
    }

    @PostMapping("/types")
    public String typepost(@Valid type type, BindingResult result, RedirectAttributes attributes){

        type type2=typeservice.getTypebyname(type.getName());

        if(type2!=null){
            result.rejectValue("name","nameerror","不能添加重复的分类");
        }

        if(result.hasErrors()){
            return "admin/types-input";
        }
      type type1=  typeservice.savaType(type);
      if(type1==null){

          attributes.addFlashAttribute("message","操作失败");
      }else{

          attributes.addFlashAttribute("message","操作成功");
      }

      return "redirect:/admin/types";
    }


    /*用@PathVariable 把url中的id传过来*/
    @GetMapping("/types/{id}/input")
    public String editInput(@PathVariable Long id , Model model){
        model.addAttribute("type",typeservice.getType(id));
        return "admin/types-input";


    }

    @PostMapping("/types/{id}")
    public String typepost(@Valid type type, BindingResult result,@PathVariable Long id, RedirectAttributes attributes){

        type type3=typeservice.getTypebyname(type.getName());

        if(type3!=null){
            result.rejectValue("name","nameerror","不能添加重复的分类");
        }

        if(result.hasErrors()){
            return "admin/types-input";
        }
        type type1=  typeservice.updateType(id,type);
        if(type1==null){

            attributes.addFlashAttribute("message","更新失败");
        }else{

            attributes.addFlashAttribute("message","更新成功");
        }

        return "redirect:/admin/types";
    }



    @GetMapping("/types/{id}/delete")
    public String delete(@PathVariable Long id,RedirectAttributes attributes){

        typeservice.deleteType(id);
        attributes.addFlashAttribute("message","删除成功");
        return "redirect:/admin/types";


    }
}
